Cytogenetics Guest Lecture - Dr. James Zabawski answers the students' questions Cytogenetics Guest Lecture - Dr. James Zabawski talks about chromosome analysis and karyotypic abnormalities Population Genetics - The students find out if they are tasters or non-tasters for PTC paper Population Genetics - The students write down the results from their PTC paper tasting Replica Plating Lab - A view of the nutrient agar and minimal media plates, showing the ratio of prototrophic to auxotrophic bacteria Replica Plating Lab - Deanne helps the students count how many bacterial colonies grew on their nutrient agar and minimal media plates Sand Dollar Fertilization Lab - A sand dollar pluteus larva Sand Dollar Fertilization Lab - A view of the gastrulation process, in which the gut and a multilayered body plan is formed Sand Dollar Fertilization Lab - The gastrula, with a view of the archenteron invagination Sand Dollar Fertilization Lab - The zygote as it enters the pluteus stage of development Sand Dollar Fertilization Lab - The zygote during gastrulation Sand Dollar Fertilization Lab - The zygote during late pluteus development